Mm-3 Modulus of Rigidity

Aim

To demonstrate that the angle of twist in a wire is proportional to the applied torque.

Apparatus

Modulus of rigidity apparatus

Set of weights

Diagrams

Click on pictures to enlarge.

Modulus of Rigidity Apparatus

Modulus of Rigidity Diagram

Videos

Modulus of Rigidity

Description

The apparatus consists of a rod clamped at one end and attached to a wheel at the other. The rod passes through a bearing at the wheel end and known torques may be applied by a string wrapped around the wheel. The twist in the rod is measured with an angular scale.